Wunderlich W
Urol Res. 1981;9(4):157-61. doi: 10.1007/BF00264820.
The influence of magnesium ions on the solubility and formation of calcium oxalate was studied. Both calcium oxalate mineral constituents of urinary calculi (whewellite and weddellite) were prepared in the presence of Mg2+ions. For preparation, a gel growth technique and precipitation in aqueous solutions were used. The metastable weddellite formed only when Mg2+ concentration, reaction, temperature and precipitation velocity (see text) were combined in the proper way. It is concluded that mg2+ions may induce an increase of solubility of calcium oxalate but in contrast also broaden the Ostwald Miers range, thus favouring the formation of larger crystals.
研究了镁离子对草酸钙溶解度和形成的影响。在Mg2+离子存在的情况下制备了尿结石的两种草酸钙矿物成分（水草酸钙和二水草酸钙）。制备过程中采用了凝胶生长技术和水溶液沉淀法。只有当Mg2+浓度、反应、温度和沉淀速度（见正文）以适当方式结合时，才会形成亚稳的二水草酸钙。得出的结论是，Mg2+离子可能会导致草酸钙溶解度增加，但相反也会拓宽奥斯特瓦尔德-迈尔斯范围，从而有利于形成更大的晶体。
